docs: def SetLineStyle(self, style):
          """
          *style* may be any line style understood by ROOT or matplotlib.
  
          For full documentation of accepted *style* arguments, see
          :class:`rootpy.plotting.style.LineStyle`.
          """
          self._linestyle = LineStyle(style)
          if isinstance(self, ROOT.TAttLine):
              ROOT.TAttLine.SetLineStyle(self, self._linestyle('root'))